import base64
import collections
import logging
from lxml.html import clean
import random
import re
import socket
import threading
import time

from email.header import decode_header, Header
from email.utils import getaddresses, formataddr
from lxml import etree

import odoo
from odoo.loglevels import ustr
from odoo.tools import pycompat, misc

_logger = logging.getLogger(__name__)

tags_to_kill = ["script", "head", "meta", "title", "link", "style", "frame", "iframe", "base", "object", "embed"]
tags_to_remove = ['html', 'body']

# allow new semantic HTML5 tags
allowed_tags = frozenset({
    'a', 'abbr', 'acronym', 'address', 'applet', 'area', 'article', 'aside',
    'audio', 'b', 'basefont', 'bdi', 'bdo', 'big', 'blink', 'blockquote', 'body', 'br',
    'button', 'canvas', 'caption', 'center', 'cite', 'code', 'col', 'colgroup',
    'command', 'datalist', 'dd', 'del', 'details', 'dfn', 'dir', 'div', 'dl',
    'dt', 'em', 'fieldset', 'figcaption', 'figure', 'font', 'footer', 'form',
    'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'header', 'hgroup', 'hr', 'html',
    'i', 'img', 'input', 'ins', 'isindex', 'kbd', 'keygen', 'label', 'legend',
    'li', 'main', 'map', 'mark', 'marquee', 'math', 'menu', 'meter', 'nav',
    'ol', 'optgroup', 'option', 'output', 'p', 'param', 'pre', 'progress', 'q',
    'rp', 'rt', 'ruby', 's', 'samp', 'section', 'select', 'small', 'source',
    'span', 'strike', 'strong', 'sub', 'summary', 'sup', 'svg', 'table', 'tbody',
    'td', 'textarea', 'tfoot', 'th', 'thead', 'time', 'tr', 'track', 'tt', 'u',
    'ul', 'var', 'video', 'wbr'
}) | frozenset([etree.Comment])

safe_attrs = clean.defs.safe_attrs | frozenset(
    ['style',
     'data-o-mail-quote',  # quote detection
     'data-oe-model', 'data-oe-id', 'data-oe-field', 'data-oe-type', 'data-oe-expression', 'data-oe-translation-id', 'data-oe-nodeid',
     'data-publish', 'data-id', 'data-res_id', 'data-interval', 'data-member_id', 'data-scroll-background-ratio', 'data-view-id',
     'data-class',
     ])


class _Cleaner(clean.Cleaner):
    _style_re = re.compile(r'''([\w-]+)\s*:\s*((?:[^;"']|"[^";]*"|'[^';]*')+)''')

    _style_whitelist = [
        'font-size', 'font-family', 'font-weight', 'background-color', 'color', 'text-align',
        'line-height', 'letter-spacing', 'text-transform', 'text-decoration', 'opacity',
        'float', 'vertical-align', 'display',
        'padding', 'padding-top', 'padding-left', 'padding-bottom', 'padding-right',
        'margin', 'margin-top', 'margin-left', 'margin-bottom', 'margin-right',
        'white-space',
        # box model
        'border', 'border-color', 'border-radius', 'border-style', 'border-width', 'border-top',
        'height', 'width', 'max-width', 'min-width', 'min-height',
        # tables
        'border-collapse', 'border-spacing', 'caption-side', 'empty-cells', 'table-layout']

    _style_whitelist.extend(
        ['border-%s-%s' % (position, attribute)
         for position in ['top', 'bottom', 'left', 'right']
         for attribute in ('style', 'color', 'width', 'left-radius', 'right-radius')]
    )

    strip_classes = False
    sanitize_style = False

    def __call__(self, doc):
        pass

    def tag_quote(self, el):
        pass

    def strip_class(self, el):
        pass

    def parse_style(self, el):
        pass


def html_sanitize(src, silent=True, sanitize_tags=True, sanitize_attributes=False, sanitize_style=False, strip_style=False, strip_classes=False):
    pass

def html_keep_url(text):
    pass

def html2plaintext(html, body_id=None, encoding='utf-8'):
    pass

def plaintext2html(text, container_tag=False):
    pass

def append_content_to_html(html, content, plaintext=True, preserve=False, container_tag=False):
    pass

email_re = re.compile(r"""([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,63})""", re.VERBOSE)
single_email_re = re.compile(r"""^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,63}$""", re.VERBOSE)
reference_re = re.compile("<.*-open(?:object|erp)-(\\d+)(?:-([\w.]+))?[^>]*@([^>]*)>", re.UNICODE)
discussion_re = re.compile("<.*-open(?:object|erp)-private[^>]*@([^>]*)>", re.UNICODE)

mail_header_msgid_re = re.compile('<[^<>]+>')

email_addr_escapes_re = re.compile(r'[\\"]')

def generate_tracking_message_id(res_id):
    pass

def email_send(email_from, email_to, subject, body, email_cc=None, email_bcc=None, reply_to=False,
               attachments=None, message_id=None, references=None, openobject_id=False, debug=False, subtype='plain',headers=None,
               smtp_server=None, smtp_port=None, ssl=False, smtp_user=None, smtp_password=None, cr=None, uid=None):
    pass

def email_split(text):
    pass

def email_split_and_format(text):
    pass

def email_escape_char(email_address):
    pass

def email_references(references):
    pass

def email_domain_extract(email):
    pass

def decode_smtp_header(smtp_header, quoted=False):
    pass

def decode_message_header(message, header, separator=' '):
    pass

def formataddr(pair, charset='utf-8'):
    pass

def encapsulate_email(old_email, new_email):
    pass
